Fig. 1From: Tumor burden score and carcinoembryonic antigen predict outcomes in patients with intrahepatic cholangiocarcinoma following liver resection: a multi‑institutional analysisCumulative overall survival (OS) and recurrence-free survival (RFS) curves of patients stratified by TBS (a, b), CEA (c, d), and CTC grade (e, f) in the derivation cohort. CEA, carcinoembryonic antigen; CTC, combination of Tumor Burden Score and CEA; TBS, Tumor Burden ScoreBack to article page